It is interesting that the “English Proficient” statement on an FAA certificate indicates an ELP of at least level 4, per AC 60-28B section 6.4. I believe that in many (most?) EASA countries, when obtaining an EASA licence conversion from an FAA certificate, only ELP 4 is granted even for native language English speakers. If desired, an ELP 5 or 6 would need to be obtained separately using the...